Pneumatic carrier.



No. 742,390. EATENTED OCT. 27, 1903.

H..BIEET0 N;.. PNBIIMAII'IG CARRIER.

APPLIQATIO'N FILED NOV. 7, 190.2. N0 MODEL. 2 SHEETS-SHERRI.

PATENTE'D OCT. 27, 1903.

C. H.BURTON. PNEUMATIC CARRIER.

APPLICATION IILBD NOV. 7, 1992.

2 SHEETS-SHEET 2.

N0 MODEL.

' m: Nonms anus co, Puorovumn" WASHHGTQN, p. c

UNITED STATES Patented October 27, 1903.

PATENT OFFICE.

CHARLES H. BURTON, BOSTON, MASSACHUSETTS, ASSIGNOR TO AMERICAN PNEUMATICSERVICE COMPANY, OF DOVER, DELA- WARE, A CORPORATION'OF DELAWARE.

PNEUMATIC CARRIER.

SPECIFICATION forming part of Letters Patent No. 742,390, dated October2?,

Application filed November 7, 1902. Serial No. 130,367. (No model.)

To all whom it may concern: v

Be it known that 1, CHARLES H. BURTON, of Boston, in the county ofSuffolk and State of Massachusetts, have invented certain new and usefulImprovements in Pneumatic Carriers, of which the following is a.specification.

My invention relates to new and useful improvements in carriers forpneumatiqde-j spatch-tube systems, and especially to means forpreventing the operation of the locking mechanism excepting when the capis in proper locking position on the shell, and also relates to meanswhereby the carrier cannot be inserted into the tube until the cap islocked to the shell of the carrier.

My invention further relates to means for preventing the movement of thelocking mechanism after the cap is locked to the carrier fortransmission in the pneumatic tube.

My invention consists of certain novel features hereinafter described,and particularly pointed out in the claims.

In the accompanying drawings, which illustrate a construction embodyingmy invention, Figure 1 is a side elevation in perspective and partly insection of a pneumatic carrier embodying my invention, part of 'thecarriershell being broken away, as shown. Fig. 2 is a perspective viewshowing the rear end of the carrier with the exterior mechanism foroperating the locking mechanism. Fig. 8 is an elevation of the inside ofthe cap,

showing the locking mechanism. Fig. 4 is a detail view in section withthe cover .closed and hereinafter described. Fig. 5 is a detail view insection showing the cover-closing and hereinafter described.

Like letters of reference refer tolike parts throughout the severalviews.

A represents the shell of the carrier, to which is hinged at A the cap Gat the rear end, and on the front end is a bufier-head C, of anysuitable elastic material,located within the receptacle D, which issecured to the shell A by rivets D passing through said shell and theflange D of said receptacle.

The outer end of said buifer-head C is cut away to receive the ring F,which is secured in place by the bolts E, secured at their in ner endsto the receptacle D, as shown in Fig. 1, thus holding the buffer-headsecurely in place. Between the front and rear end of the carrier arelocated the usual contactrings B, of any desired material. The shaft .I,which passes through the cap G, has onits exterior the nut H, andbetween said nut and the outside of the shell G is located the metallicwasher K, resting on the circular disk K, having an arm K to which ispivoted at K the finger K guided in its move ments by the guide Ksecured to the outside of the cap G. From said disk K extendsdiametrically opposite to the arm K the plate K, forming the segment ofa circle, and in the outer end of said plate K are cut the slots L, inwhich are located the studs L L fixed fast to the cap G, and by means ofsaid studs the to-and-fro movement of the plate K is controlled. Thisplate K with the disk K and arm K forms a lever mounted concentricallyon the cap G of the carrier, and by means of saidlever the lockingmechanism is operated either to lock the cap or unlock it to or from theshell of the carrier. Located within the cap G' is the disk 0 on theshaft J and movable therewith, and extending from said disk 0 are fixedstuds 0, located in the slots 0 of the bolts N. In the forward ends ofthe bolts Nare slots P, in which are located the fixed studs P,extending from the inside of the cap, and by means of said studs 0 and Pand the slots P andO the to-and-fro movements of the bolts N arelimited. The bolts N are provided with the arm N pivoted on the fixedstud N, extending from the inside of the cap, and said bolts move onsaid stud N as a center. For preventing the operation of the lockingmechanism when the cap is unlocked or when not in its proper lockingposition on the shell of the carrier there is provided the finger S,mounted on the stud T, provided with the spring T, which when the coveris open tends to throw the front end of said finger out into position infront of one of the bolts N, as shown in Fig. 3, whereby any attemptedmovement of the ed, as the bolt will strike against the projection S andhold it against movement, whereby all the other bolts will be heldagainst movement, as they all move as one by the movement of the disk 0,and if one is locked the operation of the others is prevented. Theup-and-down movement of the finger S is guided by the studs S, extendinginwardly from the inside of the cap. When the cap is open and the partsare in the position just described, and shown in full lines, Fig. 3, onthe inside of the cap, and in dotted lines, Fig. 2, on the outside ofthe cap, the finger K extends beyond the periphery of the shell G, andthus prevents the insertion of the carrier into the tube when the capand shell are locked together. When the carrier is ready to be insertedfor transit, the cap G is shut down, and the end S of the finger Spasses into the recess S, Fig. 5, on the shell of the carrier andstrikes against the end of said recess, thereby moving the finger Sinwardly, Fig. 4, toward the inner face of the cap. \Vhen this is takingplace, the operator inserts the pin R, having the handle Q, through theopenings M M of theguide M, extending from the front portion of saidplate K and secured at its rear end by the bolt M. The parts are then inthe position shown in dotted lines, Fig. 2, and the operator pushes thehandle Q to the right, (looking at Fig. 2,) when the parts come into theposition shown in full lines of said figure, the movement of the partsbeing limited by the studs L L in the slot L. This movement of the partswithdraws the finger K to within the periphery of the cap G, so that thecarrier will not be prevented from insertion into the transit-tube. Atthe same time the bolts N will pass through the openings G in the shellof the carrier into the openings G of the cap, and thereby lock the capto the shell of the carrier, after which the pin R is withdrawn and theend M of the spring M secured by the bolt M to the plate K will passdown through said plate K and the cap G through the opening M in saidcap and to one side of the finger S, dotted lines, Fig. 4, the hole Mbeing under the bolt N and to one side of the finger S, as shown indotted lines, Fig. 3. By this arrangement the locking mechanism issecurely locked against movement by the end M of the spring M after thepin R is removed and the carrier is ready forinsertion into the tube. Bymeans of this spring M when the cap is locked to the shell of thecarrier the plate K is held against movement during transit of thecarrier in the tube and the locking mechanism cannot be operated tounlock the cap. When the carrier reaches the opposite end of the line,the pin R is again inserted by the operator into the guideM and passesthrough the opening M and under the spring M lifting said spring, andout through the opening M thereby unlocking the plate K from its lockedposition to the cap G and allowing the movement of the plate K to theleft (looking at Fig. 2) and unlocking the cap, so that the contents canbe removed.

As shown in Fig. 1, the cap is closed down onto the shell of the carrierand by moving the handle Q to the left the bolts may be operated toextend out through the openings G of the cap and lock said cap and thefinger K be withdrawn to within the periphery of the cap, or if thecarrier has just been returned from the opposite end of the line and thebolts withdrawn the handle Q can be raised, so as to open the cap, asthis figure represents either the position of the parts when the cap isabout to be locked to the shell of the carrier or the position of theparts when the looking mechanism has been withdrawn and the cap is aboutto be opened.

Having thus described the nature of my inven tion and set forth aconstruction embody ing the same, what I claim as new, and desire tosecure by Letters Patent of the United States, 1s

1. In apneumatic-despatch-tube carrier, a cap, locking mechanism forsecuring the cap to the shell of the carrier, means pivoted in thecenter of the cap and located on the exterior thereof for operating saidlocking mechanism to lock and unlock the cap, means arranged to engagewith said locking mechanism aud normally hold said locking mechanismagainst movement, means with which said holding means eugages forreleasing said locking mechanism upon the movement of said cap intolocking position whereby said looking mechanism may be operated to lockthe cap to the carrier, means for locking said operating means of thesaid locking mechanism against movement when the cap is locked to thecarrier, and a removable device adapted to engage said locking means forunlocking the operating mechanism whereby the same may be operated tounlock the cap from the shell of the carrier.

2. In a pneumatic-despatch-tube carrier, :1. cap, locking mechanism forsecuring the cap to the shell of the carrier, means pivoted in thecenter of the cap and located on the exterior thereof for operating saidlocking mechanism to lock and unlock the cap, means arranged to engagewith said locking mechanism and normally hold said locking mechanismagainst movement, means With which said holding means engages forreleasing said locking mechanism upon the movement of said cap intolocking position whereby said locking mechanism may be operated to lockthe cap to the carrier, yielding means for looking said operating meansof the said locking mechanism against movement when the cap is locked tothe carrier, and a removable device adapted to engage said yieldingmeans for unlocking the operatingmechanism whereby the same may beoperated to unlock the cap from the shell of the carrier.

3. In a pneumatic-despatch-tube carrier, a cap, locking mechanism forsecuring the cap to the shell of the carrier, means pivoted in againstmovement when the cap is locked to the carrier, and a removable deviceadapted to engage said locking means for unlocking theoperating'mechanism whereby the same may be operated to unlock the capfrom the shell of the carrier.

4. In a pneumatic-despatch-tube carrier, a cap, locking mechanism forsecuring said cap to the shell of the carrier, means pivoted in thecenter of the cap and located on the exterior thereof for operatin gsaid locking mechanism, means on said cap cooperating with said lockingmechanism and arranged to project beyond the shell of the carrier andthereby prevent the insertion of the carrier into the despatch-tubeuntil the cap is locked to the carrier, a lock arranged to engage withsaid locking mechanism and normally hold said locking mechanism andprojecting means against movement, means on the shell of the carrierwith which said catch engages upon the movement of the cap into lockingposition to release said locking mechanism from said lock whereby saidlocking mechanism may be operated and said projecting means may bewithdrawn from beyond the shell of the carrier to permit the insertionof the carrier into the despatch-tube, means for locking said operatingmeans of the said locking mechanism against movement when the cap islocked to the carrier, and a removable device adapted to engage saidlocking means for unlocking the operating mechanism whereby the same maybe operated to unlock the cap from the shell of the carrier.

5. In combination with a carrier-shell, a cap for closing the open endthereof, bolts for securing the cap to the shell, a lever pivoted in thecenter of said cap for operating said bolts, a lock arranged to normallyprevent the motion of said bolts to lock the cap, means as the shell ofthe carrier for removing the lock and allowing the bolts to operate,means for locking said operating means of the said locking mechanismagainst movement when the cap is locked to the carrier, and a removabledevice adapted to engage said locking means for unlocking the operatingmechanism whereby the same may be operated to unlock the cap from theshell of the carrier.

6. In combination with a carrier-shell, a cap for closing the open endthereof, bolts for securing the cap to the shell, a lever pivoted in thecenter of said cap for operating said bolts, a lock arranged to normallyprevent the motion of said bolts to lock the cap, means as the shell ofthe carrier for removing the lock and allowing the bolts tooperate,means cooperating with said lever for preventing the insertionof the carrier until the cap is locked to the carrier, means for lockingsaid operating means of the said locking mechanism against movement whenthe cap is locked to thecarrier, and a removable device adapted toengage said locking means for unlocking the operating mechanism wherebythe same may be operated to unlock the cap from the shell of thecarrier.

7. In a pneumatic-despatch-tube carrier, a cap, locking mechanism forsecuring the cap to the shell of the carrier, means pivoted on theexterior of said cap for operating said locking mechanism to lock andunlock said cap, means arranged to engage with said locking mechanism.and normally hold the same against movement, means with which saidholding means engages for releasing said locking mechanism upon themovement of said cap into locking position whereby said lockingmechanism may be operated to lock the cap to the carrier, means forlocking said operating means of the said locking mechanism againstmovement when the cap is locked to the carrier, and a removable deviceadapted to engage said locking means for unlocking the operatingmechanism whereby the same may be operated to unlock the cap from theshell of the carrier.

8. In a pneumatic-despatch-tube carrier, a cap, locking mechanism forsecuring the cap to the shell of the carrier, means pivoted on theexterior of said cap for operating said locking mechanism to lock andunlock said cap, means arranged to engage with said locking mechanismand normally hold the same against movement, means as the shell of thecarrier with which said holding means engages for releasing said lockingmechanism upon the movement of said cap into looking position wherebysaid locking mechanism may be operated to lock the cap to the carrier,yielding means as a spring for locking I to said operating means of thesaid locking CHARLES II. BURTON.

Witnesses:

A. L. NUSSER, G. A. STEWART.

